Modeling of impurity transport in the divertor of JET

Andreas Kirschner; Dmitry Matveev; Mathias Groth; Sebastijan Brezinsek; Vladislav Kotov; Karl Krieger; Dmitry Borodin; Carolina Björkas; Markus Airila; Hans G. Esser; Gennady Sergienko; Ulrich Samm; The EFDA-JET Contributors

doi:10.1585/pfr.8.2402038

Modeling of impurity transport in the divertor of JET

Andreas Kirschner, Dmitry Matveev, Mathias Groth, Sebastijan Brezinsek, Vladislav Kotov, Karl Krieger, Dmitry Borodin, Carolina Björkas, Markus Airila, Hans G. Esser, Gennady Sergienko, Ulrich Samm, The EFDA-JET Contributors

Research output: Contribution to journal › Article in a proceedings journal › Scientific › peer-review

Abstract

Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.

Original language	English
Article number	2402038
Journal	Plasma and Fusion Research
Volume	8
DOIs	https://doi.org/10.1585/pfr.8.2402038
Publication status	Published - 2013
MoE publication type	A4 Article in a conference publication
Event	22nd International Toki Conference "Cross-Validation of Experiment and Modeling for Fusion and Astrophysical Plasmas" - Toki, Japan Duration: 19 Nov 2012 → 22 Nov 2012

Access to Document

10.1585/pfr.8.2402038

Cite this

@article{15f0623dd08448d4b8aef1ec9e41e486,

title = "Modeling of impurity transport in the divertor of JET",

abstract = "Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.",

author = "Andreas Kirschner and Dmitry Matveev and Mathias Groth and Sebastijan Brezinsek and Vladislav Kotov and Karl Krieger and Dmitry Borodin and Carolina Bj{\"o}rkas and Markus Airila and Esser, {Hans G.} and Gennady Sergienko and Ulrich Samm and {The EFDA-JET Contributors}",

year = "2013",

doi = "10.1585/pfr.8.2402038",

language = "English",

volume = "8",

journal = "Plasma and Fusion Research",

issn = "1880-6821",

note = "22nd International Toki Conference {"}Cross-Validation of Experiment and Modeling for Fusion and Astrophysical Plasmas{"} ; Conference date: 19-11-2012 Through 22-11-2012",

}

TY - JOUR

T1 - Modeling of impurity transport in the divertor of JET

AU - Kirschner, Andreas

AU - Matveev, Dmitry

AU - Groth, Mathias

AU - Brezinsek, Sebastijan

AU - Kotov, Vladislav

AU - Krieger, Karl

AU - Borodin, Dmitry

AU - Björkas, Carolina

AU - Airila, Markus

AU - Esser, Hans G.

AU - Sergienko, Gennady

AU - Samm, Ulrich

AU - The EFDA-JET Contributors

PY - 2013

Y1 - 2013

N2 - Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.

AB - Deposition/erosion measurements by means of a Quartz Micro Balance (QMB) located below the Load Bearing Septum Replacement Plate in the private flux region of the inner divertor of JET (with full carbon wall) revealed net deposition with the inner strike point located on the vertical tile and net erosion with the inner strike point on the horizontal tile [H.G. Esser et al., J. Nucl. Mater. 390–391, 148 (2009)]. ERO calculations show about 3.5 times larger flux entering the QMB aperture when the inner strike point is located on the vertical plate compared to the case when strike point is on the horizontal plate – thus indicating similar behavior. Using these fluxes from ERO as input, detailed modeling of erosion/deposition at the QMB itself considering the realistic geometry of the QMB housing has been performed with the 3D-GAPS code. The QMB measurements can be reproduced with combined ERO/3D-GAPS modeling if erosion due to deuterium atoms within the QMB housing is taken into account.

U2 - 10.1585/pfr.8.2402038

DO - 10.1585/pfr.8.2402038

M3 - Article in a proceedings journal

SN - 1880-6821

VL - 8

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

M1 - 2402038

T2 - 22nd International Toki Conference "Cross-Validation of Experiment and Modeling for Fusion and Astrophysical Plasmas"

Y2 - 19 November 2012 through 22 November 2012

ER -

Modeling of impurity transport in the divertor of JET

Abstract

Access to Document

Fingerprint

Cite this